Before you go in and put a new starter, check the following: Is the starter missing any teeth or are any teeth damaged, if they are NOT, you might have a bad flywheel. If this is the case, a new starter will not fix your problem, but a new flywheel will. Also, turn the engine slowly and check the flywheel through the starter hole. Make sure it has all of its teeth and that none are damaged. Do take the starter in for a check up at a shop or if you are in the US, some auto parts check them for free. Changing it should not be too much of a problem because of its location, but first make sure it is not the flywheel.